JPWO2014024651A1 - 金属表面改質液及び金属表面改質方法 - Google Patents
金属表面改質液及び金属表面改質方法 Download PDFInfo
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- JPWO2014024651A1 JPWO2014024651A1 JP2014529405A JP2014529405A JPWO2014024651A1 JP WO2014024651 A1 JPWO2014024651 A1 JP WO2014024651A1 JP 2014529405 A JP2014529405 A JP 2014529405A JP 2014529405 A JP2014529405 A JP 2014529405A JP WO2014024651 A1 JPWO2014024651 A1 JP WO2014024651A1
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- Prior art keywords
- acid
- metal surface
- surface modification
- zirconium
- metal
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 42
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- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 150000003755 zirconium compounds Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/50—Treatment of iron or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/53—Treatment of zinc or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/56—Treatment of aluminium or alloys based thereon
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Description
本願は、2012年8月7日に出願した特願2012-175200号明細書(その全体が参照により本明細書中に援用される)の優先権の利益を主張するものである。
(技術分野)
本発明は、フッ素を含有しない金属表面改質液及び金属表面処理方法に関する。
すなわち本発明は以下の通りである。
実施例1〜20及び比較例1〜9
オキシ硝酸ジルコニウム、オキシ硝酸チタン、硫酸チタン、乳酸、リンゴ酸、クエン酸、酢酸、ギ酸、プロピオン酸、硝酸、アンモニア、水酸化ナトリウム等を用いて、表1に示す組成及びpHを有する金属表面改質液を作製した。表1において、各金属成分の濃度は金属元素換算で示し、それ以外の成分の濃度は固形分濃度を示す。また表1において、オキシ硝酸ジルコニウム、オキシ硝酸チタンを用いた場合の硝酸イオン含有量は、これらを用いたことに由来する持ち込み量と硝酸添加による量の総量を意味する。
また金属表面改質液の液状態を表2に示す。異常の無いものをYとする。尚、表1中の(注1)〜(注3)は下記を示す。
(注1)シランカップリング剤:「KBM403」、商品名、信越化学社製、エポキシ基含有シランカップリング剤
(注2)界面活性剤:「ニューコール1100」、商品名、日本乳化剤社製、ノニオン系界面活性剤
(注3)有機樹脂:「アデカボンタイターUX206」、商品名、ADEKA社製、水性ポリウレタン樹脂。
市販の冷間圧延鋼板(SPCC−SD、日本テストパネル社製、70mm×150mm×0.8mm)を基材として、下記に示す工程及び表1の条件で表面改質処理を行なった。
上記で得た各表面改質板上に、「マジクロン#1000」(関西ペイント社製、アクリル/メラミン樹脂系有機溶剤希釈型塗料)を乾燥膜厚で30μmとなるようにエアスプレー塗装を行い、160℃で30分間加熱して焼き付けて、各試験塗板を作成した。得られた各試験塗板を下記評価試験に供した。結果を表2に示す。
1.耐食性:各実施例及び比較例の試験塗板(1)に、素地に達するよう塗膜にナイフでクロスカット傷を入れ、これを塩水噴霧腐食試験(SST:JIS Z−2371に準ずる。塩水温度35℃)に240時間供し、その後ナイフ傷部に接着テープによる貼着及び剥離を行い、カット傷から片側の塗膜の剥離幅を測定した。評価基準は以下のとおりである。
A:剥離幅3mm以内
B:剥離幅3mmを超えて5mm以内
C:剥離幅5mmを超える。
2.(耐水後)付着性:各実施例及び比較例の試験塗板(1)を温水(40℃)中に240時間浸漬し、引き上げ後に直ちに碁盤目(10×10個、1mm間隔)のカットを入れて接着テープによる貼着及び剥離を行い、塗膜の剥れマスの数を調べた。評価基準は以下のとおりである。
A:剥れマス5個以内
B:剥れマス6〜10個
C:剥れマス11個以上。
3.連続処理:各実施例および比較例1の金属表面改質液1リットルを用いて、上記に示す工程(1)〜(4)及び表1の金属表面改質処理の条件で、市販の冷間圧延鋼板(SPCC−SD、日本テストパネル社製、70mm×150mm×0.8mm)を基材として、25枚連続処理を行った。処理による改質液の持ち出し分については、適宜、初期濃度を保つように改質液成分を補給した。そして処理後の改質液の鉄イオン濃度(ppm)をICP発光分光分析により測定した後、処理後の改質液を40℃で1日放置した。その後、市販の冷間圧延鋼板(SPCC−SD、日本テストパネル社製、70mm×150mm×0.8mm)を基材として1枚、当該処理後の改質液を用いて、上記に示す工程(1)〜(4)及び表1の条件で金属表面改質処理を行い、表面改質処理板とした。各表面改質処理板の金属皮膜量は、「XRF1700」(島津製作所社製、蛍光X線分析装置)を用いて付着金属の合計量(mg/m2)として分析した。
上記の連続処理で得られた各表面改質処理板上に「マジクロン#1000」(関西ペイント社製、アクリル/メラミン樹脂系有機溶剤希釈型塗料)を乾燥膜厚で30μmとなるようにエアスプレー塗装を行い、160℃で30分間加熱して焼き付けて、各試験塗板(2)を作成した。得られた各試験塗板(2)を上記耐食性試験及び(耐水後)付着性試験に供した。結果を表2に示す。
Claims (11)
- Zr及びTiから選択される少なくとも1つの元素を10〜500ppm、オキシカルボン酸を20〜3,000ppm、炭素数1〜7のアルカン酸を1〜10,000ppm、及び硝酸イオンを1〜10,000ppm含有し、且つZr及びTiから選択される少なくとも1つの元素のオキシカルボン酸に対するモル比が1/10〜1/2で、pH2.0〜6.5の水溶液であることを特徴とするフッ素を含有しない金属表面改質液。
- オキシカルボン酸が、乳酸、リンゴ酸、クエン酸、酒石酸、グルコン酸及びグリコール酸から選ばれる少なくとも1種である請求項1に記載の金属表面改質液。
- 炭素数1〜7のアルカン酸が、ギ酸、酢酸、プロピオン酸、酪酸から選ばれる少なくとも1種である請求項1に記載の金属表面改質液。
- Zrが、オキシ硝酸ジルコニウム、硝酸ジルコニウム、オキシ酢酸ジルコニウム、酢酸ジルコニウム、炭酸ジルコニウムアンモニウム、硝酸ジルコニウムアンモニウム、硫酸ジルコニウム、オキシ硫酸ジルコニウム、乳酸ジルコニウム及び塩化ジルコニウムから選ばれる少なくとも1種に由来する請求項1に記載の金属表面改質液。
- Tiが、硝酸チタン、オキシ硝酸チタン、硫酸チタン、オキシ硫酸チタン及び硝酸チタンアンモニウムから選ばれる少なくとも1種に由来する請求項1に記載の金属表面改質液。
- pH緩衝作用を有し、pH3.5〜5.5の水溶液である請求項1に記載の金属表面改質液。
- Zr及びTiから選択される少なくとも1つの元素が、オキシ硝酸ジルコニウムとオキシ硝酸チタン又は硫酸チタンとの少なくとも一方であり、オキシカルボン酸が乳酸、リンゴ酸、及びクエン酸から選択され、炭素数1〜7のアルカン酸が、ギ酸、酢酸、及びプロピオン酸から選択される請求項1に記載の金属表面改質液。
- 金属材料の表面を改質する金属表面改質方法であって、
請求項1に記載の金属表面改質液を前記金属材料に接触させる工程と、
前記改質液を接触させる工程を経た金属材料を水洗する水洗工程と、
を含む金属表面改質方法。 - 金属材料が鉄系材料である請求項8に記載の金属表面改質方法。
- 前記改質液を接触させる前に、酢酸及び硝酸を含有する酸性水溶液による酸洗を金属材料に行なう工程をさらに含む請求項8に記載の金属表面改質方法。
- 請求項8に記載の金属表面改質方法によって表面改質された金属表面上に焼付け塗料を塗装することを特徴とする金属材料の塗装方法。
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